Manufacture of floor-covering as a substitute for linoleum



UNITED STATES JOHANNES HENDRIKUS PHILIPPUS LIGTERINK, OF UTRECHT, NETHERLANDS.

MANUFACTURE OF FLOOR-COVERING AS A S-UBSTITUTEFOR LINOLEUM.

No Drawing.

To all whom it may concern:

Be it known that I, JOHANNES I-Innnnrnos PHILIPPUS LIGTERINK, expert, subJect of the Queen of the Netherlands, residing at Utrecht, Netherlands, 10.b Sweelinckstraat, have invented certain new and useful Improvements in the Manufacture of Floor- Coverings as a Substitute for Linoleum, of which the following is a specification.

The present invention relates to improvements in the manufacture of a floor covering as a substitute for linoleum.

In the British Patent No. 12,663, A. D. 1904-, a method is described whereby a product is obtained, that is said to be a suitable article for substituting oilcloth or linoleum. Paper, treated with oil, water, size, soda and lime forms the foundation of that product. After drying, it is covered with a coat of o1l, and after that, if desired, the pattern which, owing to that coat of oil, does not become dead is put on to the upper side.

I have improved the above-said method in many respects.

I also start with paper as the body of the article, but in contradistinction to the paper in the above mentioned British Patent, the paper has through and through the fundamental color of the pattern to be put on, which is done by applying the color in the hollanders to the paste board pulp. It must be understood, that the application of the color in the hollanders is already known.

Moreover the paper is made on the paper machine, in the thickness of ordinary linoleum, and in the quality of the so called leather pasteboard in rolls of unlimited length. It is already possible to make thin pasteboard in endless lengths (papz'er sans fin) by not passing the manufactured paper through the cutting machines, which does not cause any difliculty, but was not done till now, as there was no need of it.

To make this leather pasteboard on the common paper machine, some modifications must be made to it. Firstly the paste board guide rolls must be of a larger diameter for preventing cracking the paste board. Besides, the wet-party (upon the copper gauze) has to rise a good deal at the side of admission (side of the sluices) and accordingly it must be provided with a top sieve, to prevent flowing down of the milk, and to be sure of an equal thickness of the paste board.

Specification of Letters Patent.

Patented Aug. 3, 1920.

Application filed November 23, 1918. Serial No. 263,922.

Also the sieveitself must be sufliciently long to effect proper drainage of the pulp, and the felt presses must be direct presses.

As a further improvement of the treatment according to the aforesaid British patent the paste board prepared in this way is coated, front and back, with a mixture of equal parts boiled and unboiled linseed-oil. A double purpose is reached by it; in the first place the product becomes and remains extremely supple, because the unboiled linseed oil penetrates very far into the paper filaments, and in the second place the boiled linseed oil produces on the surface of the paste board a good base for putting afterward the coat of linseed oil color on it. In the oilcloth technics the application of a mixture of boiled and unboiled linseed oil is already known.

After drying the paste board, treated in this Way, front and back are painted with linseed oil color, so as to make the product waterproof at both sides. The colors also being dried, the pattern is then put on one side; both last mentioned treatments as indicated in the aforesaid British patent.

In a Word, the treatment is as follows: In the hollanders of a paper manufactory, the color that the paste board must become afterward as a fundamental color, is added to the pulp. This paste board is manufactured in the thickness of about i, (3 millimeters) on a paper machine, and this as endless paper, with a breadth of common linoleum. Accordingly it is the same color through and through, and does not consist of layers pressed together, as is the case with common paste board obtainable up till now, and which is much too inflexible for the purpose desired.

The paste board manufactured in this manner is treated front and back with a mixture of equal parts boiled and unboiled linseed oil, and after drying repainted with a linseed oil paint in the color that the paste board already possessed. However one side, that must become the wrong side, may be treated, if desired, with brownred linseed oil color, so as to obtain a product resemblin common linoleum, which generally has that color on the wrong side.

After this coat of paint has dried sufiiciently, the usual patterns are put on the right side in the wellknown manner.

Several .of theabove mentioned treatments are already known by themselves, although not all from the linoleumor linoleumsubstitute industry. The invention however. consists of some connected undertreatments, which are partly known by themselves, but having as a result a new,

practical, till now unknown article.

The advantages ofit are, that it maybe manufactured and consequently obtained ,much cheaperv than common linoleum, Without'being inferior to it in duration of life;

besides, itisof a large insulating power to consisting in adding a fundamental color for the finished product to the paper pulp,

in rolling the said paper pulp to the thickness of common linoleum, in treating the surfaces of said rolled product with liquid consisting of equal quantities of boiled and unboiled' linseed oil, dryin the same, coating both sides of said proc uct with linseed oil, and applyii'ig a pattern to one surface of the product.

In test-in'iony whereof I have aiIiXed my signature in presence of two witnesses.

JOHANNES IIENDRIKUS PHILIPPUS LIG'lERlNK. 

